Rotary kiln for treating waste batteries

Abstract

The utility model discloses a kind of waste battery processing rotary kiln, including first cylinder, second cylinder and cooling device, wherein, first cylinder and second cylinder are connected by transmission device between, and first cylinder and second cylinder are rotationally arranged on kiln base;Heating insulation device is equipped on first cylinder, and cooling device is equipped on second cylinder;Upper cover and lower cover are equipped on the outside of second cylinder, water baffle is equipped in lower cover front section, and water reservoir is formed between water baffle and lower cover. Thus, by the water scoop that rotates with second cylinder, water is continuously transported to cooling water cavity, the purpose of cooling second cylinder is realized, simultaneously, water gathered in water cavity bottom immerses second cylinder lower part, axial immersion depth gradually increases, high-temperature pyrolysis material in second cylinder moves from high end to low end, second cylinder lower end in water is indirectly cooled, to improve cooling efficiency, shorten the length of cooling section second cylinder, reduce cooling water consumption and flue gas processing amount.

Description

Technical Field

[0001] This utility model relates to the technical field of waste battery recycling and processing, and in particular to a rotary kiln for waste battery processing. Background Technology

[0002] Waste battery processing typically involves a process of feeding, crushing, electrolyte treatment, pyrolysis, sorting, and dust removal. The pyrolysis process uses a first and second kiln body integrated into a single unit, placed on the same kiln base. The front section of the kiln body is the heating section, and the rear section is the cooling section. Both heating and cooling are indirect and are driven synchronously by a single transmission device. Currently, the cooling kiln section commonly uses water spray cooling on the outer wall of the kiln body. However, water spray cooling, because water is sprayed from the upper outer wall of the kiln body, flows down the rotating kiln body wall, easily causing splashing and atomization, resulting in limited cooling of the material, low cooling efficiency, and a long kiln body construction time. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, one objective of this utility model is to propose a rotary kiln for processing waste batteries. Water is continuously delivered to the cooling water chamber by a water ladle that rotates together with the second cylinder, thereby cooling the second cylinder. At the same time, the water collected at the bottom of the water chamber immerses the lower part of the second cylinder, with the axial immersion depth gradually increasing. The high-temperature pyrolysis material in the second cylinder moves from the high end to the low end and is indirectly cooled at the lower end of the second cylinder immersed in water, thereby improving the cooling efficiency, shortening the length of the cooling section of the second cylinder, and reducing the consumption of cooling water and the amount of flue gas to be treated.

[0005] To achieve the above objectives, the first aspect of this utility model proposes a rotary kiln for processing waste batteries, comprising a first cylinder, a second cylinder, and a cooling device, wherein the first cylinder and the second cylinder are connected by a transmission device, and both the first cylinder and the second cylinder are rotatably mounted on a kiln base; the first cylinder is provided with a heating and heat preservation device, and the second cylinder is provided with the cooling device; the second cylinder is provided with an upper cover and a lower cover, and the front section of the lower cover is provided with a baffle plate, forming a water storage tank between the baffle plate and the lower cover.

[0006] In addition, the waste battery processing rotary kiln proposed above according to this utility model may also have the following additional technical features:

[0007] Specifically, the cooling device includes a first end plate, a second end plate, multiple water scoops, a circular steel plate, multiple spiral plates, and a third end plate. The first end plate, the second end plate, and the third end plate are respectively disposed on the second cylinder. The multiple water scoops are radially distributed on the outside of the second cylinder, and the second end plate has multiple water inlet holes 321 corresponding to the water scoops. The circular steel plate is sleeved on the outside of the spiral plates. The multiple spiral plates are disposed on the outer wall of the second cylinder and connected to the circular steel plate.

[0008] Specifically, the circular steel plate has multiple water outlet holes circumferentially opened near the third end plate, and an adjustment plate is installed at each water outlet hole.

[0009] Specifically, the water ladle is disposed between the first end plate and the second end plate.

[0010] Specifically, multiple cooling water chambers are formed between the circular steel plate, the spiral plate, and the second cylinder, and each cooling water chamber is provided with a water inlet.

[0011] Specifically, the rear section of the lower cover is provided with a water outlet, which is connected to the water tank through a pipe.

[0012] Compared with existing technologies, this invention has the following advantages: Water is continuously delivered to the outer cooling water chamber formed by the spiral plate, circular steel plate, end plate, and second cylinder by a water ladle that rotates with the second cylinder. The water collects at the bottom of the chamber and gradually submerges the lower part of the second cylinder, with the axial immersion depth gradually increasing. At this time, the high-temperature pyrolysis material inside the second cylinder moves from the high end to the low end, receiving indirect cooling at the bottom of the submerged second cylinder, thereby improving cooling efficiency, shortening the length of the cooling section of the second cylinder, and reducing cooling water consumption and flue gas treatment volume.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a rotary kiln for processing waste batteries according to one embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a rotary kiln cooling device for waste battery processing according to an embodiment of the present invention;

[0017] Figure 3 This utility model Figure 2 Sectional view at point AA;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram of region B in the middle;

[0019] Figure 5 This is a cross-sectional view of a water ladle in a rotary kiln for treating waste batteries according to one embodiment of the present invention.

[0020] As shown in the figure: 1. First cylinder; 2. Second cylinder; 4. Kiln base; 5. Upper cover; 6. Lower cover; 7. Water baffle; 8. Adjusting plate; 9. Water tank; 10. Feed hood; 11. Discharge device; 31. First end plate; 32. Second end plate; 33. Water ladle; 34. Circular steel plate; 35. Spiral plate; 36. Third end plate; 341. Water outlet; 321. Water inlet; 61. Water outlet. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] The following describes the waste battery processing rotary kiln of this utility model with reference to the accompanying drawings.

[0023] like Figures 1 to 5 As shown, the waste battery processing rotary kiln of this utility model embodiment may include a first cylinder 1, a second cylinder 2, and a cooling device.

[0024] The first cylinder 1 and the second cylinder 2 are connected by a transmission device, and both the first cylinder 1 and the second cylinder 2 are rotatably mounted on the kiln base 4. The first cylinder 1 is equipped with a heating and heat preservation device, and the second cylinder 2 is equipped with a cooling device.

[0025] It should be noted that the first cylinder 1 and the second cylinder 2 are inclined and connected to each other. The heating and heat preservation device is used to heat the first cylinder 1 so that the organic matter inside the first cylinder 1 decomposes and separates the organic matter and metal components.

[0026] Furthermore, the cooling device can continuously deliver water to the cooling water cavity on the outer wall of the second cylinder 2. The water at the bottom of the water cavity immerses the lower part of the second cylinder 2, and the axial immersion depth gradually increases. The high-temperature pyrolysis material in the second cylinder 2 moves from the high end to the low end and is indirectly cooled at the lower end of the immersed second cylinder 2, which improves the cooling efficiency. The length of the second cylinder 2 is correspondingly shortened, reducing the consumption of cooling water and the amount of flue gas to be treated.

[0027] In an embodiment of this utility model, one end of the first cylinder 1 is connected to a feeding hood 10, and the battery raw materials can be transported into the feeding hood 10 by a screw conveyor. The end of the second cylinder 2 is provided with a discharge device 11 to discharge the processed batteries.

[0028] The second cylinder 2 is provided with an upper cover 5 and a lower cover 6 on its exterior. The lower cover 6 is provided with a water baffle 7 at its front end, and a water storage pool is formed between the water baffle 7 and the lower cover 6.

[0029] In the embodiments of this application, the water storage tank is connected to the water supply via water pipes and water pumps. The water pipes and water pumps can continuously transport external water sources to the water storage tank. When the water level in the water storage tank rises, water will overflow from the upper end of the baffle plate 7 and flow into the outlet of the cover 6.

[0030] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the cooling device includes a first end plate 31, a second end plate 32, multiple water scoops 33, a circular steel plate 34, multiple spiral plates 35, and a third end plate 36. The first end plate 31, the second end plate 32, and the third end plate 36 are respectively disposed on the second cylinder 2. The multiple water scoops 33 are radially distributed outside the second cylinder 2, and the second end plate 32 has multiple water inlet holes 321 corresponding to the water scoops 33. The circular steel plate 34 is sleeved on the outside of the spiral plates 35, and the multiple spiral plates 35 are disposed on the outer wall of the second cylinder 2 and connected to the circular steel plate 34.

[0031] It should be noted that the first end plate 31, the second end plate 32 and the third end plate 36 are circular ring structures and are fixedly installed on the outer wall of the second cylinder 2.

[0032] Furthermore, multiple spiral plates 35 are attached to the outer wall of the second cylinder 2. The pitch of the spiral plates 35 can be determined by the cooling requirements of the second cylinder 2. Specifically, when the system requires a lower cooling temperature, the pitch of the spiral plates 35 can be appropriately reduced to increase the heat exchange area and extend the flow path of the cooling medium, thereby enhancing the heat dissipation effect.

[0033] In one embodiment of this utility model, such as Figure 2 As shown, multiple cooling water chambers are formed between the circular steel plate 34, the spiral plate 35, and the second cylinder 2, and each cooling water chamber is provided with a water inlet.

[0034] In an embodiment of this utility model, the cooling water chamber has a spiral structure, and the spiral plate 35 can continuously push the cooling water to the bottom of the cooling water chamber, thereby immersing the lower part of the second cylinder 2 in the cooling water.

[0035] Furthermore, such as Figure 2 and Figure 3 As shown, the water ladle 33 is positioned between the first end plate 31 and the second end plate 32.

[0036] It should be noted that the water ladle 33 is welded and fixed to the second cylinder 2 and rotates with the second cylinder 2. The water ladle 33 scoops up the cooling water in the water storage tank and enters the cooling water chamber through the water inlet 321 of the second end plate 32. The spiral plate 35 continuously pushes the cooling water to the bottom of the spiral cooling water chamber, thereby achieving the cooling effect on the second cylinder 2.

[0037] In one embodiment of this utility model, such as Figure 4 As shown, a plurality of water outlet holes 341 are opened circumferentially near the third end plate 36 on the circular steel plate 34, and an adjustment plate 8 is installed at the water outlet holes 341.

[0038] It should be noted that the adjusting plate 8 described in this embodiment includes two semicircular rings with flanges, and the two semicircular rings are connected by bolts and nuts. By tightening or loosening the nuts, the axial position of the adjusting plate 8 can be moved, and the width of the water outlet 341 can be changed, thereby adjusting the cooling water output.

[0039] Furthermore, the cooling water is centrifugally ejected through the outlet hole 341, thereby preventing the cooling water from splashing out from the second cylinder 2 and the upper and lower cover end holes.

[0040] In one embodiment of this utility model, such as Figure 2 As shown, the lower cover 6 has a water outlet 61 at the rear, and the water outlet 61 is connected to the water tank 9 through a pipe.

[0041] It should be noted that the water tank 9 is located below the second cylinder 2. The water tank 9 can hold the cooling water and facilitate the recovery of the cooling water.

[0042] Specifically, during the process of the high-temperature pyrolysis material inside the first cylinder 1 moving from the high end to the low end, it is cooled inside the second cylinder 2. When the water ladle 33 rotates with the second cylinder 2, the water ladle 33 carries the cooling water in the water storage tank and enters the cooling water chamber through the water inlet 321 on the second end plate 32. At the same time, as the spiral plate 35 rotates with the second cylinder 2, it continuously pushes the cooling water to the bottom of the cooling water chamber, so that the cooling water flows on the outer wall of the second cylinder 2 to conduct the heat of the second cylinder 2 to the cooling water, thereby achieving the purpose of cooling. Under the shielding effect of the circular steel plate 34, the contact process between the cooling water and the second cylinder 2 will not cause the cooling water to splash or atomize, which is conducive to accelerating the cooling speed.

[0043] Meanwhile, the bottom of the second cylinder 2 is immersed in cooling water, which can further cool the second cylinder 2, thereby improving the cooling efficiency. The pitch of the spiral plate 35 can be adjusted according to the cooling requirements of the second cylinder 2 to shorten the length of the second cylinder 2 and reduce the consumption of cooling water and the amount of flue gas treated.

[0044] In summary, the rotary kiln for waste battery processing in this embodiment of the invention continuously delivers water to the outer cooling water chamber formed by the spiral plate, circular steel plate, end plate, and second cylinder through a water ladle that rotates together with the second cylinder. The water collects at the bottom of the water chamber and gradually submerges the lower part of the second cylinder, with the axial immersion depth gradually increasing. At this time, the high-temperature pyrolysis material in the second cylinder moves from the high end to the low end and is indirectly cooled at the bottom of the second cylinder immersed in water, thereby improving cooling efficiency, shortening the length of the cooling section of the second cylinder, and reducing cooling water consumption and flue gas treatment volume.

[0045] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A rotary kiln for processing waste batteries, characterized in that, It includes a first cylinder, a second cylinder, and a cooling device, wherein, The first cylinder and the second cylinder are connected by a transmission device, and both the first cylinder and the second cylinder are rotatably mounted on the kiln base; The first cylinder is equipped with a heating and heat preservation device, and the second cylinder is equipped with the cooling device; The second cylinder is provided with an upper cover and a lower cover. The front section of the lower cover is provided with a baffle plate, and a water storage pool is formed between the baffle plate and the lower cover.

2. The rotary kiln for processing waste batteries according to claim 1, characterized in that, The cooling device includes a first end plate, a second end plate, multiple water scoops, a circular steel plate, multiple spiral plates, and a third end plate. The first end plate, the second end plate, and the third end plate are respectively disposed on the second cylinder; Multiple water scoops are radially distributed on the outside of the second cylinder, and multiple water inlet holes corresponding to the water scoops are provided on the second end plate; The circular steel plate is sleeved on the outside of the spiral plate; Multiple spiral plates are disposed on the outer wall of the second cylinder and connected to the circular steel plate.

3. The rotary kiln for processing waste batteries according to claim 2, characterized in that, Multiple water outlet holes are opened circumferentially near the third end plate of the circular steel plate, and an adjustment plate is installed at each water outlet hole.

4. The rotary kiln for processing waste batteries according to claim 2, characterized in that, The water ladle is positioned between the first end plate and the second end plate.

5. The rotary kiln for processing waste batteries according to claim 2, characterized in that, Multiple cooling water chambers are formed between the circular steel plate, the spiral plate, and the second cylinder, and each cooling water chamber is provided with a water inlet.

6. The rotary kiln for processing waste batteries according to claim 1, characterized in that, The lower cover is provided with a water outlet at the rear, and the water outlet is connected to the water tank through a pipe.

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